C#之工厂

namespace ConsoleApplication1
{
    /// <summary>
    /// 抽象类水果
    /// </summary>
    public interface Fruits
    {
        void GetFruits();
    }

    public enum FruitsType
    {
        AppleType=0,
        BananaType=1,
        OrangeType = 2,
    };
    public class Apple : Fruits
    {
        public void GetFruits()
        {
            Console.WriteLine("吃苹果");
        }
    }
    public class Banana : Fruits
    {
        public void GetFruits()
        {
            Console.WriteLine("吃香蕉");
        }
    }

    public class Orange : Fruits
    {
        public void GetFruits()
        {
            Console.WriteLine("吃橘子");
        }
    }

    public class Factory
    {
        public Fruits GetFruits(FruitsType fruitstype)
        {
            switch (fruitstype)
            {
                case FruitsType.AppleType:
                    return new Apple();
                case FruitsType.BananaType:
                    return new Banana();
                case FruitsType.OrangeType:
                    return new Orange();
                default:
                    throw new Exception("没有要买的水果");
            }
          
        }
    }
    class Program
    {
        static void Main(string[] args)
        {
            Factory factory = new Factory();
            Fruits fruits;
            fruits = factory.GetFruits(FruitsType.AppleType);
            fruits.GetFruits();
            Console.ReadLine();
        }

    }
  
}
resault:apple